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2024-04-15 - 17:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackaslot5s.osadl.org (updated Mon Apr 15, 2024 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811120,0rcu_preempt19-21ksoftirqd/109:19:521
811080,0rcu_preempt19-21ksoftirqd/110:19:141
811070,0rcu_preempt19-21ksoftirqd/109:24:471
811020,0rcu_preempt19-21ksoftirqd/111:05:061
811000,0rcu_preempt19-21ksoftirqd/111:56:051
81990,0rcu_preempt54-21kswapd010:47:291
81940,0rcu_preempt19-21ksoftirqd/109:12:321
81930,0rcu_preempt19-21ksoftirqd/111:00:431
81930,0rcu_preempt0-21swapper/112:29:341
81900,0rcu_preempt19-21ksoftirqd/111:39:521
81890,0rcu_preempt19-21ksoftirqd/112:20:571
81870,0rcu_preempt3-21ksoftirqd/010:30:440
81870,0rcu_preempt19-21ksoftirqd/112:27:591
81870,0rcu_preempt19-21ksoftirqd/112:09:511
81860,0rcu_preempt19-21ksoftirqd/111:21:091
81850,0rcu_preempt19-21ksoftirqd/111:45:051
81840,0rcu_preempt54-21kswapd012:09:241
81830,0rcu_preempt19-21ksoftirqd/110:57:061
81830,0rcu_preempt19-21ksoftirqd/110:53:251
81810,0rcu_preempt19-21ksoftirqd/110:24:521
81810,0rcu_preempt1703-21kworker/0:209:11:400
81790,0rcu_preempt19-21ksoftirqd/110:09:131
81780,0rcu_preempt54-21kswapd009:41:361
81770,0rcu_preempt32349-21ssh10:42:431
81770,0rcu_preempt19-21ksoftirqd/108:24:361
81740,0rcu_preempt25255-1kworker/0:1H09:39:390
81740,0rcu_preempt19-21ksoftirqd/107:21:561
81740,0rcu_preempt0-21swapper/110:03:491
81730,0rcu_preempt19-21ksoftirqd/109:49:361
81730,0rcu_preempt19-21ksoftirqd/108:13:441
81710,0rcu_preempt19-21ksoftirqd/109:58:431
81710,0rcu_preempt19-21ksoftirqd/108:31:331
81710,0rcu_preempt19-21ksoftirqd/107:44:431
81700,0rcu_preempt54-21kswapd012:18:141
81700,0rcu_preempt3-21ksoftirqd/010:35:380
81700,0rcu_preempt3-21ksoftirqd/010:35:380
81700,0rcu_preempt19-21ksoftirqd/111:53:101
81700,0rcu_preempt0-21swapper/110:38:501
81700,0rcu_preempt0-21swapper/110:38:501
81690,0rcu_preempt54-21kswapd011:35:371
81690,0rcu_preempt29419-21kworker/1:111:32:401
81680,0rcu_preempt6366-21kworker/1:107:10:021
81680,0rcu_preempt3-21ksoftirqd/010:08:210
81670,0rcu_preempt19-21ksoftirqd/112:01:191
81670,0rcu_preempt19-21ksoftirqd/110:10:311
81670,0rcu_preempt19-21ksoftirqd/110:10:311
81670,0rcu_preempt19-21ksoftirqd/109:17:291
10050670,0irq/346-4848400171rcuc/108:39:501
81660,0rcu_preempt3-21ksoftirqd/010:58:100
81660,0rcu_preempt19-21ksoftirqd/111:15:141
81660,0rcu_preempt19-21ksoftirqd/111:15:141
81660,0rcu_preempt19-21ksoftirqd/110:30:461
81660,0rcu_preempt19-21ksoftirqd/110:23:061
81660,0rcu_preempt19-21ksoftirqd/107:29:171
81650,0rcu_preempt19-21ksoftirqd/111:27:401
81650,0rcu_preempt19-21ksoftirqd/111:11:061
10050650,0irq/346-4848400171rcuc/109:38:181
81640,0rcu_preempt3-21ksoftirqd/011:41:050
81640,0rcu_preempt19-21ksoftirqd/109:32:171
81630,0rcu_preempt19-21ksoftirqd/109:00:111
81620,0rcu_preempt19-21ksoftirqd/109:48:071
81620,0rcu_preempt19-21ksoftirqd/108:05:441
81620,0rcu_preempt19-21ksoftirqd/107:50:101
681199624,0cyclictest0-21swapper/011:14:080
681199621,0cyclictest24560-1kworker/0:0H11:15:340
681199621,0cyclictest24560-1kworker/0:0H11:15:340
81610,0rcu_preempt19-21ksoftirqd/108:04:051
81610,0rcu_preempt1026-21lighttpd08:19:221
681199601,0cyclictest22585-21ping08:21:170
81590,0rcu_preempt7095-21apt-get08:49:381
81590,0rcu_preempt5453-21apt-get08:44:381
81590,0rcu_preempt19-21ksoftirqd/108:24:091
81580,0rcu_preempt8585-21apt-get07:14:381
81580,0rcu_preempt19-21ksoftirqd/108:35:011
81580,0rcu_preempt19-21ksoftirqd/107:32:241
81580,0rcu_preempt14774-21kworker/1:207:55:081
81560,0rcu_preempt19-21ksoftirqd/108:54:581
81550,0rcu_preempt19-21ksoftirqd/109:04:341
81530,0rcu_preempt4089-21meminfo12:34:521
81520,0rcu_preempt19-21ksoftirqd/107:40:001
81490,0rcu_preempt3-21ksoftirqd/012:35:260
81490,0rcu_preempt3-21ksoftirqd/012:27:390
81490,0rcu_preempt3-21ksoftirqd/008:17:450
81480,0rcu_preempt3-21ksoftirqd/007:04:410
81470,0rcu_preempt3-21ksoftirqd/011:51:170
81470,0rcu_preempt3-21ksoftirqd/011:44:380
81470,0rcu_preempt3-21ksoftirqd/011:04:560
81470,0rcu_preempt3-21ksoftirqd/008:54:380
81470,0rcu_preempt3-21ksoftirqd/008:09:400
81470,0rcu_preempt3-21ksoftirqd/007:54:410
81470,0rcu_preempt19-21ksoftirqd/107:35:051
81460,0rcu_preempt3-21ksoftirqd/009:49:370
81460,0rcu_preempt3-21ksoftirqd/007:59:360
81460,0rcu_preempt1703-21kworker/0:208:49:500
9950450,0irq/345-484840015966-1kworker/0:2H09:15:500
9950450,0irq/345-484840010345-1kworker/0:0H12:08:380
81450,0rcu_preempt3-21ksoftirqd/011:34:470
81450,0rcu_preempt3-21ksoftirqd/010:09:380
81450,0rcu_preempt3-21ksoftirqd/010:09:380
81450,0rcu_preempt22663-21kworker/0:208:04:340
81440,0rcu_preempt5934-21munin-node1
81440,0rcu_preempt3-21ksoftirqd/012:32:410
81440,0rcu_preempt3-21ksoftirqd/007:18:070
81430,0rcu_preempt3-21ksoftirqd/012:12:450
81430,0rcu_preempt3-21ksoftirqd/010:49:330
81430,0rcu_preempt3-21ksoftirqd/009:58:540
81430,0rcu_preempt3-21ksoftirqd/007:54:240
681199432,0cyclictest10093-21ping07:19:350
81420,0rcu_preempt32473-1kworker/0:1H08:28:260
81420,0rcu_preempt3-21ksoftirqd/012:19:560
81420,0rcu_preempt3-21ksoftirqd/011:55:110
81420,0rcu_preempt3-21ksoftirqd/010:14:380
81420,0rcu_preempt3-21ksoftirqd/009:37:210
9950410,0irq/345-484840029736-21runrttasks10:39:470
9950410,0irq/345-484840013515-21diskmemload12:00:430
9950410,0irq/345-48484000-21swapper/008:35:070
81410,0rcu_preempt3-21ksoftirqd/012:15:030
81410,0rcu_preempt3-21ksoftirqd/011:23:220
81410,0rcu_preempt3-21ksoftirqd/011:01:340
81410,0rcu_preempt3-21ksoftirqd/010:48:070
81410,0rcu_preempt3-21ksoftirqd/009:25:370
81410,0rcu_preempt13515-21diskmemload11:27:210
9950400,0irq/345-484840022979-21latency_hist09:19:340
9950400,0irq/345-484840014426-21runrttasks09:45:180
9950400,0irq/345-48484000-21swapper/008:29:410
81400,0rcu_preempt3-21ksoftirqd/011:32:460
81400,0rcu_preempt3-21ksoftirqd/009:30:340
81400,0rcu_preempt3-21ksoftirqd/008:45:500
81400,0rcu_preempt3-21ksoftirqd/007:11:440
1599400,0migration/018375-21sh10:25:480
81390,0rcu_preempt3-21ksoftirqd/010:19:390
81390,0rcu_preempt3-21ksoftirqd/009:00:330
81390,0rcu_preempt3-21ksoftirqd/008:40:080
81390,0rcu_preempt3-21ksoftirqd/007:47:020
681199391,0cyclictest13144-1kworker/0:2H07:32:100
81380,0rcu_preempt3-21ksoftirqd/009:59:350
81380,0rcu_preempt10093-21ping07:24:340
10050380,0irq/346-48484000-21swapper/009:04:550
81370,0rcu_preempt18323-21latency_hist07:44:330
10050360,0irq/346-484840016662-21latency_hist07:39:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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